Qihoo 360, which trades as 360 Security Technology Inc., is a Chinese internet-security company headquartered in Beijing. In June 2026 it presented two AI-based cybersecurity systems — Tulongfeng, a vulnerability-discovery tool, and Yitianzhen, an automated defense tool — and said Tulongfeng matched the capability of Anthropic's Mythos at finding software vulnerabilities.
| Legal name | 360 Security Technology Inc. |
| Founded | 2005 (as Qihoo) |
| Founders | Zhou Hongyi; Qi Xiangdong |
| Headquarters | Chaoyang, Beijing, China |
| Sector | Internet and cybersecurity software |
| CEO / Chairman | Zhou Hongyi |
Overview
Qihoo 360 was founded in 2005 by Zhou Hongyi and Qi Xiangdong and is based in Beijing (Source: en.wikipedia.org). The company built its consumer business on antivirus software, a web browser, and search products, and is described in business coverage as one of China's larger internet-security firms (Source: forbes.com). Zhou Hongyi, the company's chairman and chief executive, is a member of the Chinese People's Political Consultative Conference and has publicly framed artificial intelligence as a strategic national technology (Source: forbes.com).
AI cybersecurity tools
On June 24, 2026, Qihoo 360 presented Tulongfeng, an AI tool for discovering software vulnerabilities, which the company said had identified more than 3,400 software vulnerabilities and matched the capability of Anthropic's Mythos at the task (Source: qz.com; reuters.com). Alongside it the company described Yitianzhen, a second AI system that it said automatically simulates potential attacks for defensive testing (Source: theregister.com). Zhou Hongyi characterized vulnerability-finding AI as a national strategic asset and warned of what he called "one-way transparency," in which one side's systems become legible to an adversary's tools while the reverse does not hold (Source: techcrunch.com).
The company's claims, which it made through public statements rather than an independent evaluation, have not been verified by third parties. Anthropic has described Mythos Preview as having found thousands of high-severity vulnerabilities through its Project Glasswing program, against which the 360 tools were compared in news coverage (Source: anthropic.com).
Context
The 360 announcements were part of a set of June 2026 launches by Chinese and Japanese developers presenting domestic alternatives to Anthropic's restricted frontier models, after a mid-June 2026 U.S. government order barred non-Americans from accessing Anthropic's Mythos and Fable 5 (Source: techcrunch.com). Coverage placed the tools within a broader narrowing of the U.S.–China gap in AI-assisted cybersecurity, a contest in which security researchers had said Chinese open-weight models were approaching U.S. systems at finding software bugs while trailing on other tasks (Source: wsj.com).
Relationships
- related: Claude Mythos Preview, Anthropic, Autonomous cyber-agents, AI and Cybersecurity, Export Controls (AI), US-China AI Competition: Different Races, Different Metrics
Sources
- Reuters, "China's 360 says it has developed tools to match Anthropic's Mythos" (2026-06-24).
- Quartz, "China's 360 Security claims AI vulnerability tool rivals Claude Mythos" (2026-06-24).
- The Register, "Chinese cybersecurity company claims it's built a better-than-Mythos bug finder" (2026-06-26).
- TechCrunch, "Asian AI startups launch Mythos-like models as Anthropic's export ban drags on" (2026-06-27).
- Background: Wikipedia, "Qihoo 360"; Forbes profile of Zhou Hongyi.